Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Dave Blasby]

Excellent - I will close the ticket.

Cheers,
Dave

On Tue, Aug 1, 2017 at 2:14 AM, Dylan Parry 
wrote:

> Hi Dave,
>
> Apologies, I've been away for a few days and was unable to test it until
> this morning. Your fix appears to have worked!
>
> Thanks,
>
> On 31/07/17 23:02, Dave Blasby wrote:
>
> Hi, Dylan,
>
> Did it work for you?
>
> Thanks,
> Dave
>
> On Fri, Jul 28, 2017 at 10:49 AM, Dave Blasby 
> wrote:
>
>> Hi, Dylan,
>>
>> I had some travis build issues, but it's built now.  I asked torben to
>> kick-off a nightly build; it should be done in an hour or two.
>>
>> Please give it a try when its done,
>> Dave
>>
>> On Thu, Jul 27, 2017 at 12:16 PM, Dylan Parry <
>> dylan.pa...@bluefoxtech.co.uk> wrote:
>>
>>> That's excellent! Thanks :) Will it be the nightly build I'll need to
>>> try, or is there another way of getting the updated extension?
>>>
>>> On 27/07/17 20:10, Dave Blasby wrote:
>>>
>>> Hi, Dylan,
>>>
>>> I tracked the problem down to an issue in the VT rendering.  If no SLD
>>> rules apply (as in your case), then it does some funny business.
>>>
>>> I think I've fixed this, just going to make a PR for it and you can give
>>> it a try.
>>>
>>> Thanks,
>>> Dave
>>>
>>> On Thu, Jul 27, 2017 at 3:45 AM, Dylan Parry <
>>> dylan.pa...@bluefoxtech.co.uk> wrote:
>>>
 Hi Dave,

 Thanks for looking into this for me. I've created a very small extract
 of a housing estate projected as EPSG:27700, and have uploaded it here
 https://we.tl/UY1Ubtdm64. It's a zip file containing the SHP, SHX, PRJ
 and DBF files.

 Please let me know if it's a good enough extract for you to work with.

 Thanks,

 Dylan


 On 26/07/17 18:49, Dave Blasby wrote:

> Dylan,
>
> Do you think you could provide me with a little buildings shapefile
> (with a small amount of data - even if it's just 2 polygons)?
> The most likely problem will be CRSs issues causing scale calculation
> problems; I can quickly run it in the debugger.
>
>
> Thanks,
> Dave
>



 
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 Geoserver-users@lists.sourceforge.net
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>>>
>>>
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>>>
>>> Please make sure you read the following two resources before posting to
>>> this list:
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>>> http://www.ianturton.com/talks/foss4g.html#/
>>> - The GeoServer user list posting guidelines:
>>> http://geoserver.org/comm/userlist-guidelines.html
>>>
>>> Geoserver-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>>>
>>>
>>
>
> --
>
> Dylan Parry
> Lead Developer, Blue Fox Technology Ltd
> --
>
>  T: 01452 524901
> W: www.opusmap.co.uk
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> 
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> Twitter]  [image: YouTube]
>  [image:
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>
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>
> 
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> Please make sure you read the following two resources before posting to
> this list:
> - Earning your support instead of buying it, but Ian Turton:
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> - The GeoServer user list posting guidelines: http://geoserver.org/comm/
> userlist-guidelines.html
>
> 

Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Dylan Parry]

Hi Dave,

Apologies, I've been away for a few days and was unable to test it until 
this morning. Your fix appears to have worked!


Thanks,


On 31/07/17 23:02, Dave Blasby wrote:

Hi, Dylan,

Did it work for you?

Thanks,
Dave

On Fri, Jul 28, 2017 at 10:49 AM, Dave Blasby 
> wrote:


Hi, Dylan,

I had some travis build issues, but it's built now. I asked torben
to kick-off a nightly build; it should be done in an hour or two.

Please give it a try when its done,
Dave

On Thu, Jul 27, 2017 at 12:16 PM, Dylan Parry
> wrote:

That's excellent! Thanks :) Will it be the nightly build I'll
need to try, or is there another way of getting the updated
extension?


On 27/07/17 20:10, Dave Blasby wrote:

Hi, Dylan,

I tracked the problem down to an issue in the VT rendering. 
If no SLD rules apply (as in your case), then it does some

funny business.

I think I've fixed this, just going to make a PR for it and
you can give it a try.

Thanks,
Dave

On Thu, Jul 27, 2017 at 3:45 AM, Dylan Parry
> wrote:

Hi Dave,

Thanks for looking into this for me. I've created a very
small extract of a housing estate projected as
EPSG:27700, and have uploaded it here
https://we.tl/UY1Ubtdm64. It's a zip file containing the
SHP, SHX, PRJ and DBF files.

Please let me know if it's a good enough extract for you
to work with.

Thanks,

Dylan


On 26/07/17 18:49, Dave Blasby wrote:

Dylan,

Do you think you could provide me with a little
buildings shapefile (with a small amount of data -
even if it's just 2 polygons)?
The most likely problem will be CRSs issues causing
scale calculation problems; I can quickly run it in
the debugger.


Thanks,
Dave





--
Check out the vibrant tech community on one of the
world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
___
Geoserver-users mailing list

Please make sure you read the following two resources
before posting to this list:
- Earning your support instead of buying it, but Ian
Turton: http://www.ianturton.com/talks/foss4g.html#/

- The GeoServer user list posting guidelines:
http://geoserver.org/comm/userlist-guidelines.html


Geoserver-users@lists.sourceforge.net

https://lists.sourceforge.net/lists/listinfo/geoserver-users






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___
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Please make sure you read the following two resources before
posting to this list:
- Earning your support instead of buying it, but Ian Turton:
http://www.ianturton.com/talks/foss4g.html#/

- The GeoServer user list posting guidelines:
http://geoserver.org/comm/userlist-guidelines.html


Geoserver-users@lists.sourceforge.net

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Dylan Parry
Lead Developer, Blue Fox Technology Ltd

T:  01452 524901
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Opus Map - Try it for 

Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Dave Blasby]

Hi, Dylan,

I had some travis build issues, but it's built now.  I asked torben to
kick-off a nightly build; it should be done in an hour or two.

Please give it a try when its done,
Dave

On Thu, Jul 27, 2017 at 12:16 PM, Dylan Parry  wrote:

> That's excellent! Thanks :) Will it be the nightly build I'll need to try,
> or is there another way of getting the updated extension?
>
> On 27/07/17 20:10, Dave Blasby wrote:
>
> Hi, Dylan,
>
> I tracked the problem down to an issue in the VT rendering.  If no SLD
> rules apply (as in your case), then it does some funny business.
>
> I think I've fixed this, just going to make a PR for it and you can give
> it a try.
>
> Thanks,
> Dave
>
> On Thu, Jul 27, 2017 at 3:45 AM, Dylan Parry <
> dylan.pa...@bluefoxtech.co.uk> wrote:
>
>> Hi Dave,
>>
>> Thanks for looking into this for me. I've created a very small extract of
>> a housing estate projected as EPSG:27700, and have uploaded it here
>> https://we.tl/UY1Ubtdm64. It's a zip file containing the SHP, SHX, PRJ
>> and DBF files.
>>
>> Please let me know if it's a good enough extract for you to work with.
>>
>> Thanks,
>>
>> Dylan
>>
>>
>> On 26/07/17 18:49, Dave Blasby wrote:
>>
>>> Dylan,
>>>
>>> Do you think you could provide me with a little buildings shapefile
>>> (with a small amount of data - even if it's just 2 polygons)?
>>> The most likely problem will be CRSs issues causing scale calculation
>>> problems; I can quickly run it in the debugger.
>>>
>>>
>>> Thanks,
>>> Dave
>>>
>>
>>
>>
>> 
>> --
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> ___
>> Geoserver-users mailing list
>>
>> Please make sure you read the following two resources before posting to
>> this list:
>> - Earning your support instead of buying it, but Ian Turton:
>> http://www.ianturton.com/talks/foss4g.html#/
>> - The GeoServer user list posting guidelines:
>> http://geoserver.org/comm/userlist-guidelines.html
>>
>> Geoserver-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>>
>
>
> 
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
> Geoserver-users mailing list
>
> Please make sure you read the following two resources before posting to
> this list:
> - Earning your support instead of buying it, but Ian Turton:
> http://www.ianturton.com/talks/foss4g.html#/
> - The GeoServer user list posting guidelines: http://geoserver.org/comm/
> userlist-guidelines.html
>
> Geoserver-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
>
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot___
Geoserver-users mailing list

Please make sure you read the following two resources before posting to this 
list:
- Earning your support instead of buying it, but Ian Turton: 
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines: 
http://geoserver.org/comm/userlist-guidelines.html

Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users

Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Dylan Parry]

Hi Dave,

Thanks for looking into this for me. I've created a very small extract 
of a housing estate projected as EPSG:27700, and have uploaded it here 
https://we.tl/UY1Ubtdm64. It's a zip file containing the SHP, SHX, PRJ 
and DBF files.


Please let me know if it's a good enough extract for you to work with.

Thanks,

Dylan


On 26/07/17 18:49, Dave Blasby wrote:

Dylan,

Do you think you could provide me with a little buildings shapefile 
(with a small amount of data - even if it's just 2 polygons)?
The most likely problem will be CRSs issues causing scale calculation 
problems; I can quickly run it in the debugger.



Thanks,
Dave




--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
___
Geoserver-users mailing list

Please make sure you read the following two resources before posting to this 
list:
- Earning your support instead of buying it, but Ian Turton: 
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines: 
http://geoserver.org/comm/userlist-guidelines.html

Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users

Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Dave Blasby]

Dylan,

Do you think you could provide me with a little buildings shapefile (with a
small amount of data - even if it's just 2 polygons)?
The most likely problem will be CRSs issues causing scale calculation
problems; I can quickly run it in the debugger.


Thanks,
Dave

On Wed, Jul 26, 2017 at 2:17 AM, Dylan Parry 
wrote:

> Hi Dave/Jody,
>
> Thanks for the replies. I'll combine my replies to both of you as you
> asked similar questions :)
>
> Firstly, I'm using ShapeFiles for my data. I may move to use something
> else later, but during my development stage it's simpler for me to be able
> to drop in replacement data etc if they are simple files.
>
> The original data is in EPSG:27700 (British National Grid), and I'm
> serving it as EPSG:3857. This doesn't appear to be the issue though---I
> repeated the experiments that I'll detail below using both projections and
> got similar results in both. In all cases I chose a fairly large tile size
> to get the most extreme results.
>
> Anyhow, here are the experiments I've tried:
>
> --- start ---
>
> With Point Data
> ===
>
> SLD
> ===
>
> 
>xsi:schemaLocation="http://www.opengis.net/sld
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd;
> 
>   xmlns="http://www.opengis.net/sld; 
> xmlns:ogc="http://www.opengis.net/ogc; 
>   xmlns:xlink="http://www.w3.org/1999/xlink;
>  xmlns:xsi="http://www.w3.org/
> 2001/XMLSchema-instance" >
>
>   
> 
> 
>   red square point style
>   
> 
>   red point
>   1
>   
> 
>   
> square
> 
>   #ff
> 
>   
>   6
> 
>   
> 
>
>   
> 
>   
> 
>
> Results
> ===
>
> WMS as PNG (Approx 1:8500)
> ==
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=image%
> 2Fpng=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.
> 045424278
>
> ~126ms on first run (~81ms without SLD)
>
> WMS as VectorTile (Approx 1:8500)
> =
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%
> 3Btype%3Dmapbox-vector=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.
> 045424278
>
> ~68ms on first run (~83ms without SLD)
>
> WMS as PNG (Approx 1:17k)
> ==
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=image%
> 2Fpng=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 253206.87203131313%2c6774771.217351635%2c-247345.
> 1074246937%2c6779357.439048746
>
> ~93ms on first run (~109ms without SLD)
>
> WMS as VectorTile (Approx 1:17k)
> 
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%
> 3Btype%3Dmapbox-vector=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 253206.87203131313%2c6774771.217351635%2c-247345.
> 1074246937%2c6779357.439048746
>
> ~107ms on first run (~135ms without SLD)
>
> With Polygon Data
> =
>
> SLD
> ===
>
> 
>xsi:schemaLocation="http://www.opengis.net/sld
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd;
> 
>   xmlns="http://www.opengis.net/sld; 
> xmlns:ogc="http://www.opengis.net/ogc; 
>   xmlns:xlink="http://www.w3.org/1999/xlink;
>  xmlns:xsi="http://www.w3.org/
> 2001/XMLSchema-instance" >
>
>   
> Polygon Test
> 
>   A grey polygon style
>   
> 
>   grey polygon
>   1
>   
> 
>   #cc
>   
> 
> 
>   #00
>   0.5
> 
>   
>
> 
>
>   
> 
>   
> 
>
>
> Results
> ===
>
> WMS as PNG (Approx 1:8500)
> ==
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=image%
> 2Fpng=true=openmap-local%
> 3Abuilding=EPSG%3A3857=1227=960=-
> 251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.
> 045424278
>
> ~242ms on first run (~220 without SLD)
>
> WMS as VectorTile (Approx 1:8500)
> =
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%

Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Dylan Parry]

Thanks, Jody. I understand that, but surely it shouldn't be taking 18 
times longer to produce the same tile just because I've told it to not 
to show any data at that scale? When I had no SLD at all it was less 
than half a second to create a tile.



On 26/07/17 16:41, Jody Garnett wrote:
Dylan the vector tile code does not do any magic for reducing your 
data size - your SLD should have a series of scale based rules 
selecting what content you wish to display at each zoom level. This 
will make for a long style - but often the work was already done for 
performance reasons so we took this approach.


--
Jody Garnett

On 26 July 2017 at 02:17, Dylan Parry > wrote:


Hi Dave/Jody,

Thanks for the replies. I'll combine my replies to both of you as
you asked similar questions :)

Firstly, I'm using ShapeFiles for my data. I may move to use
something else later, but during my development stage it's simpler
for me to be able to drop in replacement data etc if they are
simple files.

The original data is in EPSG:27700 (British National Grid), and
I'm serving it as EPSG:3857. This doesn't appear to be the issue
though---I repeated the experiments that I'll detail below using
both projections and got similar results in both. In all cases I
chose a fairly large tile size to get the most extreme results.

Anyhow, here are the experiments I've tried:

--- start ---

With Point Data
===

SLD
===


http://www.opengis.net/sld
http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd;


  xmlns="http://www.opengis.net/sld; 
xmlns:ogc="http://www.opengis.net/ogc; 
  xmlns:xlink="http://www.w3.org/1999/xlink;

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance;
>

  


  red square point style
  

  red point
  1
  

  
square

  #ff

  
  6

  


  

  


Results
===

WMS as PNG (Approx 1:8500)
==


http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=image%2Fpng=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.045424278



~126ms on first run (~81ms without SLD)

WMS as VectorTile (Approx 1:8500)
=


http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%3Btype%3Dmapbox-vector=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.045424278



~68ms on first run (~83ms without SLD)

WMS as PNG (Approx 1:17k)
==


http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=image%2Fpng=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-253206.87203131313%2c6774771.217351635%2c-247345.1074246937%2c6779357.439048746



~93ms on first run (~109ms without SLD)

WMS as VectorTile (Approx 1:17k)



http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%3Btype%3Dmapbox-vector=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-253206.87203131313%2c6774771.217351635%2c-247345.1074246937%2c6779357.439048746



~107ms on first run (~135ms without SLD)

With Polygon Data
=

SLD

Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Jody Garnett]

Dylan the vector tile code does not do any magic for reducing your data
size - your SLD should have a series of scale based rules selecting what
content you wish to display at each zoom level. This will make for a long
style - but often the work was already done for performance reasons so we
took this approach.

--
Jody Garnett

On 26 July 2017 at 02:17, Dylan Parry  wrote:

> Hi Dave/Jody,
>
> Thanks for the replies. I'll combine my replies to both of you as you
> asked similar questions :)
>
> Firstly, I'm using ShapeFiles for my data. I may move to use something
> else later, but during my development stage it's simpler for me to be able
> to drop in replacement data etc if they are simple files.
>
> The original data is in EPSG:27700 (British National Grid), and I'm
> serving it as EPSG:3857. This doesn't appear to be the issue though---I
> repeated the experiments that I'll detail below using both projections and
> got similar results in both. In all cases I chose a fairly large tile size
> to get the most extreme results.
>
> Anyhow, here are the experiments I've tried:
>
> --- start ---
>
> With Point Data
> ===
>
> SLD
> ===
>
> 
>xsi:schemaLocation="http://www.opengis.net/sld
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd;
> 
>   xmlns="http://www.opengis.net/sld; 
> xmlns:ogc="http://www.opengis.net/ogc; 
>   xmlns:xlink="http://www.w3.org/1999/xlink;
>  xmlns:xsi="http://www.w3.org/
> 2001/XMLSchema-instance" >
>
>   
> 
> 
>   red square point style
>   
> 
>   red point
>   1
>   
> 
>   
> square
> 
>   #ff
> 
>   
>   6
> 
>   
> 
>
>   
> 
>   
> 
>
> Results
> ===
>
> WMS as PNG (Approx 1:8500)
> ==
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=image%
> 2Fpng=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.
> 045424278
>
> ~126ms on first run (~81ms without SLD)
>
> WMS as VectorTile (Approx 1:8500)
> =
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%
> 3Btype%3Dmapbox-vector=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.
> 045424278
>
> ~68ms on first run (~83ms without SLD)
>
> WMS as PNG (Approx 1:17k)
> ==
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=image%
> 2Fpng=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 253206.87203131313%2c6774771.217351635%2c-247345.
> 1074246937%2c6779357.439048746
>
> ~93ms on first run (~109ms without SLD)
>
> WMS as VectorTile (Approx 1:17k)
> 
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%
> 3Btype%3Dmapbox-vector=true=openmap-local%
> 3Aroundabout=EPSG%3A3857=1227=960=-
> 253206.87203131313%2c6774771.217351635%2c-247345.
> 1074246937%2c6779357.439048746
>
> ~107ms on first run (~135ms without SLD)
>
> With Polygon Data
> =
>
> SLD
> ===
>
> 
>xsi:schemaLocation="http://www.opengis.net/sld
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd;
> 
>   xmlns="http://www.opengis.net/sld; 
> xmlns:ogc="http://www.opengis.net/ogc; 
>   xmlns:xlink="http://www.w3.org/1999/xlink;
>  xmlns:xsi="http://www.w3.org/
> 2001/XMLSchema-instance" >
>
>   
> Polygon Test
> 
>   A grey polygon style
>   
> 
>   grey polygon
>   1
>   
> 
>   #cc
>   
> 
> 
>   #00
>   0.5
> 
>   
>
> 
>
>   
> 
>   
> 
>
>
> Results
> ===
>
> WMS as PNG (Approx 1:8500)
> ==
>
> http://localhost:8080/geoserver/openmap-local/wms?
> SERVICE=WMS=1.1.1=GetMap=image%
> 2Fpng=true=openmap-local%
> 3Abuilding=EPSG%3A3857=1227=960=-
> 251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.
> 045424278
>
> ~242ms on first run (~220 without SLD)
>
> WMS as VectorTile (Approx 1:8500)
> =
>
> http://localhost:8080/geoserver/openmap-local/wms?
> 

Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Dylan Parry]

Hi Dave/Jody,

Thanks for the replies. I'll combine my replies to both of you as you 
asked similar questions :)


Firstly, I'm using ShapeFiles for my data. I may move to use something 
else later, but during my development stage it's simpler for me to be 
able to drop in replacement data etc if they are simple files.


The original data is in EPSG:27700 (British National Grid), and I'm 
serving it as EPSG:3857. This doesn't appear to be the issue though---I 
repeated the experiments that I'll detail below using both projections 
and got similar results in both. In all cases I chose a fairly large 
tile size to get the most extreme results.


Anyhow, here are the experiments I've tried:

--- start ---

With Point Data
===

SLD
===


  xsi:schemaLocation="http://www.opengis.net/sld 
http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd;

  xmlns="http://www.opengis.net/sld; xmlns:ogc="http://www.opengis.net/ogc;
  xmlns:xlink="http://www.w3.org/1999/xlink; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance;>


  


  red square point style
  

  red point
1
  

  
square

  #ff

  
  6

  


  

  


Results
===

WMS as PNG (Approx 1:8500)
==

http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=image%2Fpng=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.045424278

~126ms on first run (~81ms without SLD)

WMS as VectorTile (Approx 1:8500)
=

http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%3Btype%3Dmapbox-vector=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.045424278

~68ms on first run (~83ms without SLD)

WMS as PNG (Approx 1:17k)
==

http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=image%2Fpng=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-253206.87203131313%2c6774771.217351635%2c-247345.1074246937%2c6779357.439048746

~93ms on first run (~109ms without SLD)

WMS as VectorTile (Approx 1:17k)


http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%3Btype%3Dmapbox-vector=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-253206.87203131313%2c6774771.217351635%2c-247345.1074246937%2c6779357.439048746

~107ms on first run (~135ms without SLD)

With Polygon Data
=

SLD
===


  xsi:schemaLocation="http://www.opengis.net/sld 
http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd;

  xmlns="http://www.opengis.net/sld; xmlns:ogc="http://www.opengis.net/ogc;
  xmlns:xlink="http://www.w3.org/1999/xlink; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance;>


  
Polygon Test

  A grey polygon style
  

  grey polygon
1
  

  #cc
  


  #00
  0.5

  



  

  



Results
===

WMS as PNG (Approx 1:8500)
==

http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=image%2Fpng=true=openmap-local%3Abuilding=EPSG%3A3857=1227=960=-251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.045424278

~242ms on first run (~220 without SLD)

WMS as VectorTile (Approx 1:8500)
=

http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%3Btype%3Dmapbox-vector=true=openmap-local%3Abuilding=EPSG%3A3857=1227=960=-251589.75115165487%2c6775967.934575723%2c-248658.86884834513%2c6778261.045424278

~184ms on first run (~189ms without SLD)

WMS as PNG (Approx 1:17k)
==

http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=image%2Fpng=true=openmap-local%3Abuilding=EPSG%3A3857=1227=960=-253206.87203131313%2c6774771.217351635%2c-247345.1074246937%2c6779357.439048746

~95ms on first run (~511ms without SLD)

WMS as VectorTile (Approx 1:17k)


http://localhost:8080/geoserver/openmap-local/wms?SERVICE=WMS=1.1.1=GetMap=application%2Fx-protobuf%3Btype%3Dmapbox-vector=true=openmap-local%3Aroundabout=EPSG%3A3857=1227=960=-253206.87203131313%2c6774771.217351635%2c-247345.1074246937%2c6779357.439048746

~5416ms on first run (~362ms without SLD)

--- end ---

The point data didn't really show any issues. It's possible that this is 
because that dataset is pretty sparse in comparison to other datasets 
that I'm working with. The real issues arise when using polygon 
data---serving as VectorTile with the SLD took 

Re: [Geoserver-users] Hide layers in layer group

[Dave Blasby]

Hi, Dylan,

The VT renderer should be taking the min/max scale range into consideration
when querying the underlying data.

Do you have access to a dev environment?  If you do, please look
in VectorTileMapOutputFormat#produceMap().  About half way down, you should
see;

Query query = getStyleQuery(layer, mapContent);

This should be taking the min/max scale denominator into consideration.

Questions;
1. what's your SLD
2. what type of data set are you using (postgis? shp?)
3. could you verify that all your CRSes are setup correctly for the layer
and request?  (it could be calculating the incorrect map scale)
4. how are your requests setup?  Are you using the SLD in #1?  Could you
give an example request that directly communicates with the WMS (that's
quick for an image format and slow for a mapbox VT format)?

Thanks,
Dave



On Mon, Jul 24, 2017 at 4:57 AM, Dylan Parry 
wrote:

> Hi Andrea,
>
> That's good to know---I was sure the presentations I watched were using
> SLD, but figured it was me just "not getting it"!
>
> If that's the case, then this is almost certainly a bug, or I'm not
> writing my SLD correctly. Hopefully the module maintainer will be able to
> chip in on this and confirm whether it's a bug or show an example of how to
> correctly write the SLD so that it does filter the data out rather than
> spend an inordinate amount of time processing it!
>
> Thanks,
>
> On 24/07/17 12:54, Andrea Aime wrote:
>
> On Mon, Jul 24, 2017 at 10:36 AM, Paul Wittle via Geoserver-users <
> geoserver-users@lists.sourceforge.net> wrote:
>
>> Hi,
>>
>>
>>
>> My understanding of WFS was that SLD’s are not applied to the request as
>> the service provides features rather than rendered outputs. I think you may
>> need to put your restrictions into the filtering rather than the SLD but I
>> accept that is more complex if you are trying to apply a number of scale
>> dependencies by feature type within the SLD.
>>
>
> Hi Paul,
> vector tiles are a WMS output, so they should be taking into account SLD.
> What Dylan describes looks more like a bug to me.
> Unfortunately we don't seem to be catching the module maintainer
> attention...
>
> Cheers
> Andrea
>
> --
>
> Regards,
>
> Andrea Aime
>
> == GeoServer Professional Services from the experts! Visit
> http://goo.gl/it488V for more information. == Ing. Andrea Aime @geowolf 
> Technical
> Lead GeoSolutions S.A.S. Via di Montramito 3/A 55054  Massarosa (LU) phone:
> +39 0584 962313 <+39%200584%20962313> fax: +39 0584 1660272
> <+39%200584%20166%200272> mob: +39  339 8844549 <+39%20339%20884%204549>
> http://www.geo-solutions.it http://twitter.com/geosolutions_it
>
> AVVERTENZE AI SENSI DEL D.Lgs. 196/2003
>
> Le informazioni contenute in questo messaggio di posta elettronica e/o
> nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
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>
> The information in this message and/or attachments, is intended solely for
> the attention and use of the named addressee(s) and may be confidential or
> proprietary in nature or covered by the provisions of privacy act
> (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
> Code).Any use not in accord with its purpose, any disclosure, reproduction,
> copying, distribution, or either dissemination, either whole or partial, is
> strictly forbidden except previous formal approval of the named
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> immediately the sender by telephone, fax or e-mail and delete the
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> Dylan Parry
> Lead Developer, Blue Fox Technology Ltd
> --
>
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> 
>  [image:
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Re: [Geoserver-users] Hide layers in layer group for vector tiles

[Jody Garnett]

Thanks Dylan, your email subject did not say vector tiles so it was not
noticed by Dave Blasby.

The problem I'm having is that the SLD doesn't seem to have the desired
> effect when I start requesting vector tiles. It is incredibly slow at small
> scales. This makes me think that my data is still being processed instead
> of being excluded by the SLD. Nothing appears on the map as at that small a
> scale the features are being excluded by virtue of their size, but this
> means they are being tested by GeoServer for area/length etc so it's really
> slow. Most of the time it takes so long that requests will timeout.
>

It sounds like you are using SLD correctly (to control what content is
generated). The vector tiles code issues the same queries as defined in
your SLD (so that should exclude content if that is how you have set up
your SLD).

What data store are you using? Can you confirm that normal WMS performance
is fine and only the vector tile output is slow? Perhaps you can link to
some screen shots of the different output at different scales.

You have already seen the two options:

* if your features are being filtered based on your SLD rules correctly
* Or if they are being simplified (based on scale) and are no longer valid
(and are thus not included). The WMS rendering code, and I assume the
vector tile code, requests features back in simplified form, if your
features are invalid when simplified (for example polygions  simplified to
a single point) then I would expect that feature to be skipped.

Can you test your SLD with points? To avoid simplification question, I
cannot tell if you have found a bug or if your SLD rules are not working as
you intend.
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Re: [Geoserver-users] Hide layers in layer group

[Dylan Parry]

Thanks, that's also really helpful to know. Am I right in thinking that 
disabling the metatiling is just a case of setting it to 1x1 instead of 
4x4, or is there another setting that I'm missing?


Thanks again,

Dylan


On 24/07/17 14:04, Nuno Oliveira wrote:

TMS ? If you are using GWC you may want to take a look at this issue:
https://osgeo-org.atlassian.net/browse/GEOS-8228

Basically when using vector tiles with GWC metaling needs to be 
deactivated.


Is not your main issue but help you get a decent cache hit :)



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Re: [Geoserver-users] Hide layers in layer group

[Nuno Oliveira]

TMS ? If you are using GWC you may want to take a look at this issue:
https://osgeo-org.atlassian.net/browse/GEOS-8228

Basically when using vector tiles with GWC metaling needs to be deactivated.

Is not your main issue but help you get a decent cache hit :)

On 07/24/2017 12:47 PM, Dylan Parry wrote:


Hi,

I'm using TMS with the VectorTile extension rather than WFS. I believe this is 
the recommended method as it simplifies the data for smaller scales and 
delivers a much smaller dataset. I've had a quick look, and it seems that CQL 
isn't supported by this setup :(

For now, I've found that I'm able to specify min/max resolutions in OpenLayers, 
and have split the layer groups into several groups that I can turn on/off 
based on the resolution. Eg. housing is a layer group, roads another etc. This 
means more requests to the server, but I can live with that as the TMS is going 
via GeoWebCache so it's no big strain on resources.

Thanks for your help though. Hopefully filtering support will come with time, 
but the hack I'm using at the moment will do for now at least.


On 24/07/17 11:59, Paul Wittle via Geoserver-users wrote:


Hi,

I believe you can use the CQL filter parameter if you are using a GET HTTP 
request but if you have a complex filter you may need to use a POST request and 
the OGC filter as a parameter. I assume you need to switch to POST requests as 
there is a limit on the length a URL can be and long CQL can make you hit the 
limit if you are querying by polygon.

I’ve actually just been looking into it again last week as I need the filters 
for WFS GetFeature requests; I’m assuming that is the service you are using for 
your vector tiles.

In terms of constructing the correct filters you should consult the 
documentation at http://docs.geoserver.org/latest/en/user/filter/index.html

However I don’t know how that works in terms of layergroups where you want an 
entire layer to be ignored at a given scale. I don’t know if WFS even uses the 
concept. I think it just returns the features within the given bbox and without 
rendering dimensions I’m not sure a scale dominator would apply. Hopefully 
someone else will help you there?

If the request returns a feature ID (FID) then you may be able to filter out 
whole layers based on the request size in units i.e. the width and height of 
your bbox.

Paul

"This e-mail is intended for the named addressee(s) only and may contain information 
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Re: [Geoserver-users] Hide layers in layer group

[Dylan Parry]

Hi Andrea,

That's good to know---I was sure the presentations I watched were using 
SLD, but figured it was me just "not getting it"!


If that's the case, then this is almost certainly a bug, or I'm not 
writing my SLD correctly. Hopefully the module maintainer will be able 
to chip in on this and confirm whether it's a bug or show an example of 
how to correctly write the SLD so that it does filter the data out 
rather than spend an inordinate amount of time processing it!


Thanks,


On 24/07/17 12:54, Andrea Aime wrote:
On Mon, Jul 24, 2017 at 10:36 AM, Paul Wittle via Geoserver-users 
> wrote:


Hi,

My understanding of WFS was that SLD’s are not applied to the
request as the service provides features rather than rendered
outputs. I think you may need to put your restrictions into the
filtering rather than the SLD but I accept that is more complex if
you are trying to apply a number of scale dependencies by feature
type within the SLD.


Hi Paul,
vector tiles are a WMS output, so they should be taking into account 
SLD. What Dylan describes looks more like a bug to me.
Unfortunately we don't seem to be catching the module maintainer 
attention...


Cheers
Andrea
--

Regards,

Andrea Aime

==GeoServer Professional Services from the experts! Visit 
http://goo.gl/it488V for more information.==Ing. Andrea Aime 
@geowolfTechnical LeadGeoSolutions S.A.S.Via di Montramito 3/A55054 
 Massarosa (LU)phone: +39 0584 962313fax: +39 0584 1660272mob: +39 
 339 8844549http://www.geo-solutions.ithttp://twitter.com/geosolutions_it


AVVERTENZE AI SENSI DEL D.Lgs. 196/2003

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cortesemente di darcene notizia via e-mail e di procedere alla 
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diverse, costituisce comportamento contrario ai principi dettati dal 
D.Lgs. 196/2003.


The information in this message and/or attachments, is intended solely 
for the attention and use of the named addressee(s) and may be 
confidential or proprietary in nature or covered by the provisions of 
privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New 
Data Protection Code).Any use not in accord with its purpose, any 
disclosure, reproduction, copying, distribution, or either 
dissemination, either whole or partial, is strictly forbidden except 
previous formal approval of the named addressee(s). If you are not the 
intended recipient, please contact immediately the sender by 
telephone, fax or e-mail and delete the information in this message 
that has been received in error. The sender does not give any warranty 
or accept liability as the content, accuracy or completeness of sent 
messages and accepts no responsibility  for changes made after they 
were sent or for other risks which arise as a result of e-mail 
transmission, viruses, etc.





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Re: [Geoserver-users] Hide layers in layer group

[Dylan Parry]

Hi,

I'm using TMS with the VectorTile extension rather than WFS. I believe 
this is the recommended method as it simplifies the data for smaller 
scales and delivers a much smaller dataset. I've had a quick look, and 
it seems that CQL isn't supported by this setup :(


For now, I've found that I'm able to specify min/max resolutions in 
OpenLayers, and have split the layer groups into several groups that I 
can turn on/off based on the resolution. Eg. housing is a layer group, 
roads another etc. This means more requests to the server, but I can 
live with that as the TMS is going via GeoWebCache so it's no big strain 
on resources.


Thanks for your help though. Hopefully filtering support will come with 
time, but the hack I'm using at the moment will do for now at least.



On 24/07/17 11:59, Paul Wittle via Geoserver-users wrote:


Hi,

I believe you can use the CQL filter parameter if you are using a GET 
HTTP request but if you have a complex filter you may need to use a 
POST request and the OGC filter as a parameter. I assume you need to 
switch to POST requests as there is a limit on the length a URL can be 
and long CQL can make you hit the limit if you are querying by polygon.


I’ve actually just been looking into it again last week as I need the 
filters for WFS GetFeature requests; I’m assuming that is the service 
you are using for your vector tiles.


In terms of constructing the correct filters you should consult the 
documentation at 
http://docs.geoserver.org/latest/en/user/filter/index.html


However I don’t know how that works in terms of layergroups where you 
want an entire layer to be ignored at a given scale. I don’t know if 
WFS even uses the concept. I think it just returns the features within 
the given bbox and without rendering dimensions I’m not sure a scale 
dominator would apply. Hopefully someone else will help you there?


If the request returns a feature ID (FID) then you may be able to 
filter out whole layers based on the request size in units i.e. the 
width and height of your bbox.


Paul

"This e-mail is intended for the named addressee(s) only and may 
contain information about individuals or other sensitive information 
and should be handled accordingly. Unless you are the named addressee 
(or authorised to receive it for the addressee) you may not copy or 
use it, or disclose it to anyone else. If you have received this email 
in error, kindly disregard the content of the message and notify the 
sender immediately. Please be aware that all email may be subject to 
recording and/or monitoring in accordance with relevant legislation."



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Re: [Geoserver-users] Hide layers in layer group

[Paul Wittle via Geoserver-users]

Hi,

My understanding of WFS was that SLD's are not applied to the request as the 
service provides features rather than rendered outputs. I think you may need to 
put your restrictions into the filtering rather than the SLD but I accept that 
is more complex if you are trying to apply a number of scale dependencies by 
feature type within the SLD.

Perhaps you are rendering it with the SLD on the client side using something 
like OpenLayers; if so, you will still want to filter the original request from 
the GeoServer I would think.

Probably not a very helpful response but I hope it helps a bit if you haven't 
already had a reply.

Thanks,
Paul
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